Chainslap - How to get rid!
mf-racing
Posts: 149
Hi guys,
This is on my new Trek Fuel EX9 running full 08 XT, with the shadow version of the rear mech.
I'm suffering from really noise chain slap when descending, it’s especially bad in the granny and middle rings, and only slightly better in the big ring. I have a fabric chain stay protector fitted (came with the bike) but it does not seem to dampen the noise that much.
I'm thinking taking a few links out of the chain but when I’m in big/big gears even now the rear mech looks a bit stretched out, so I’m not sure if this is the answer?
Years ago, you could buy chain devices that stopped all this by holding the chain up by the chainstay or extra springs pulling the rear mech back.
Any idea on what I can do? Maybe fitting a better rear mech will help (XTR)?
Cheers
Matt
This is on my new Trek Fuel EX9 running full 08 XT, with the shadow version of the rear mech.
I'm suffering from really noise chain slap when descending, it’s especially bad in the granny and middle rings, and only slightly better in the big ring. I have a fabric chain stay protector fitted (came with the bike) but it does not seem to dampen the noise that much.
I'm thinking taking a few links out of the chain but when I’m in big/big gears even now the rear mech looks a bit stretched out, so I’m not sure if this is the answer?
Years ago, you could buy chain devices that stopped all this by holding the chain up by the chainstay or extra springs pulling the rear mech back.
Any idea on what I can do? Maybe fitting a better rear mech will help (XTR)?
Cheers
Matt
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Comments
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Have you tried the tension screw on the rear derailleur? If that doesnt work, maybe your chain is too long.0
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defcone wrote:Have you tried the tension screw on the rear derailleur? If that doesnt work, maybe your chain is too long.
Nope, is that the B-screw? What does it do?0 -
Im not sure, on my X-9 rear dérailleur, by tightening that tension screw, the rear dérailleur will extend, giving more tension to the chain.0
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For what it's worth, i have the xtr shadow mech and it makes not a jot of difference.
Huge rattling chain slap affects me too, so an expensive rear mech will not solve your problems.
I will follow this thread though as i'd be interested in ways of cutting it out.0 -
Go Sram.
i thought the Shadow mechs were also meant to reduce the slap..."Do not follow where the path may lead, Go instead where there is no path, and Leave a Trail."
Parktools :?:SheldonBrown0 -
earplugs!0
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Using big front ring & middle cog on rear helps. & a Lizard Skin on your chain stayGiant Defy 4 2014
GT Avalanche Expert 2006
Specialized Hardrock 19890